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← ScienceWhich outcome results when a catalytic converter fails?
A)Increased hydrocarbon emissions in the exhaust✓
B)Reduction of nitrogen oxide emissions
C)Enhanced conversion of CO to CO2
D)Improved engine fuel efficiency overall
💡 Explanation
Increased hydrocarbon emissions exit because the catalytic converter's oxidation and reduction processes halt due to catalyst deactivation. The mechanism of failure involves catalyst poisoning; therefore uncombusted hydrocarbons pass through rather than being converted to CO2 and water.
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